Key Vocab - 14. Nervous System

Front

Nervous system

Back

Body system made up of the brain, spinal cord, and network of nerves; processes information and carries out decisions.

Front

Nerve / Neuron

Back

Specialized cells that receive and send electrical signals (messages) throughout the body.

Front

Impulse

Back

Electrical signal sent through nerves/neurons.

Front

Central nervous system

Back

Brain and spinal cord made up of interneurons.

Front

Peripheral nervous system

Back

Network of nerves throughout the body including sensory and motor neurons.

Front

Sensory neuron

Back

Nerves activated by sensory input in the PNS.

Front

Motor neuron

Back

Nerves that send messages to muscles, glands, and nerves to activate movement in the PNS.

Front

Interneuron

Back

Relay neuron; connects motor and sensory neurons in the CNS.

Front

Cell body

Back

Part of the neuron that contains the nucleus.

Front

Dendrite

Back

Part of a neuron that receives messages/nerve impulses from other neurons.